Safety tie-back anchor



FIG. 1 is a front perspective view showing my new design for a safety tie-back anchor;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof, which is a mirror of the right side view;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines included in the Figures above depict portions of the safety tie-back anchor that form no part of the claimed design. 

CLAIM The ornamental design for a safety tie-back anchor, as shown and as described. 